Halimede (moon)
Moon of Neptune / From Wikipedia, the free encyclopedia
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Halimede /hæləˈmiːdiː/, or Neptune IX, is a retrograde irregular satellite of Neptune. It was discovered by Matthew J. Holman, John J. Kavelaars, Tommy Grav, Wesley C. Fraser and Dan Milisavljevic on August 14, 2002.[7]
Quick Facts Discovery, Discovered by ...
Discovery[1][2] | |
---|---|
Discovered by | |
Discovery date | August 14, 2002 |
Designations | |
Designation | Neptune IX |
Pronunciation | /hæləˈmiːdiː/[3] |
Named after | Ἁλιμήδη Halimēdē |
S/2002 N 1 | |
Adjectives | Halimedean /ˌhæləməˈdiːən/ |
Orbital characteristics[4] | |
Epoch June 10, 2003 | |
16,611,000 km | |
Eccentricity | 0.2646 |
1879.08 d (5.14 a) | |
Inclination | 134.1° |
Physical characteristics | |
Mean diameter | 62 km (for albedo 0.04)[5] |
Albedo | 0.04 (assumed)[5] |
Spectral type | neutral (grey) B-V=0.73 R-V=0.35[6] |
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